1) The form or source from which something is derived; an origin.
起源导出某物的形式或源泉;开端
2) The coming into being of something; the origin.
开端，起源某物的形成;起源
3) Pleasure or a source of pleasure.
快乐或快乐的源泉
4) A cause or source of happiness.
幸福的源泉或原因
5) A source or an origin.
来源或起源
6) origin of animals
动物的起源
1.
The origin of animals is dependent mainly on" dehydration- condensation reaction" between small organic molecules as amino acids enter into organic high molecules as protein, ribonucleic acid, polysaccharidsand so on in seawater.
动物的起源主要依赖于氨基酸等有机小分子在海水中能否进行脱水缩合反应而生成生物高分子，后者则依赖于海水pH值升高和大气CO2浓度降低的历史演化进程。
补充资料：起源
1.事物产生的根源。 2.发源。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条